TM 5-5420-202-34
FUEL PRIMER PUMP INLET VALVE ASSEMBLY REPAIR (Sheet 1 of 1)
Retaining ring pliers (internal)
TOOLS:
6 in. steel rule
Rags (Item 28, Appendix B)
SUPPLIES:
Lubricating oil (Item 17, Appendix B)
Gloves (Item 31, Appendix B)
Parts kit
Dry cleaning solvent (Item 12, Appendix B)
Goggles (Item 32, Appendix B)
PRELIMINARY PROCEDURE:
Remove inlet valve assemblies from primer pump (page
4-80, step 14).
NOTE
Repair of two inlet valve assemblies in primer
pump is identical.
DISASSEMBLY:
1.
Remove preformed packings (A and B)
from valve. assembly (C) and throw away
packings.
2.
Using pliers, remove retaining ring (D)
from inside of valve assembly (C).
Remove spring (E) and ball bearing (F).
3.
CLEANING AND INSPECTION:
Solvent burns easily and can give off harmful vapors. To avoid injury, use
in a well-ventilated area and keep away from fire.
1.
Clean all parts of inlet valve assembly
with dry cleaning solvent as required.
2.
Using steel rule, check spring for wear.
Free length of spring should be between
51/64 inch to 13/16 inch. Replace if
not within limits.
ASSEMBLY:
1.
Install ball bearing (F) and spring (E)
in valve assembly (C).
2.
Using retaining ring pliers, install retaining
ring (D).
3.
Apply lubricating oil to preformed
packings (A and B).
4.
Install new packings (A and B) on valve
assembly (C).
5.
Install inlet valve assembly in primer
pump (page 4-81, steps 1 and 2).
End of Task
